Unit 107

The title given to a person responsible for

carrying out an initial verification is:

• Inspector

• Tester

• Verifier

• Technician

According to BS7671, the qualification level of the person carrying out an initial verification is a:

• trained person

• qualified person

• skilled person

• responsible person

According to BS7671, a person who is NOT trained as an electrician is

• an ordinary person

• a member of the public

• an untrained person

• an unauthorised person

The responsibility level for the person carrying out an initial verification is:

• technical officer

• site supervisor

• responsible person

• duty holder

The need for an electrical system to be maintained in a safe condition is stated in:

• The Electrical Equipment Safety Regulations

• The Maintenance of Electrical Supply Regulations

• The Electricity at Work Regulations

• Electricity Safety, Quality and Continuity Regulations

The main steps of safe isolation are:

• Identify and isolate electrical supply, verify

  all circuits from consumer unit are dead, verify then re-verify and re-verify approved voltage indicator

• Identify and isolate electrical supply,

  select approved voltage indicator and verify, verify that circuit is dead, re-verify test instrument

• Lock off electrical supply, select approved hand

  tools, verify that circuit is dead, commence work on circuit

• Identify and isolate electrical supply, select

  approved voltage indicator and verify, verify that circuit is dead

Which of the following sets of tests require

safe isolation?

• Continuity of cpc, continuity of ring final

  circuit, earth electrode test

• Insulation resistance, Ze, continuity of ring

  final circuit

• Continuity of cpc, continuity of ring final

  circuit, earth electrode test, Zs

• RCD tests, Ze, polarity, insulation resistance

Caution must be exercised even when a circuit is isolated under which circumstance?

• Presence of photovoltaic panels, UPS and generators

• Presence of surge protection devices and suppression devices

• Presence of no-volt protection and power factor protection

• Presence of solar thermal collectors and biomass systems

Test and inspection of a new installation is called

• Periodic report

• Minor works assessment

• Initial verification

• Commissioning procedure

With regards to initial verification, BS7671 states that:

• It is not necessary in the case of an

  installation under an effective management system for preventative maintenance in normal use

• Every installation shall, during erection

  and completion before being put into service, be inspected and tested

• Initial verification shall be carried out in

  order determine as far as is reasonably practicable, whether the installation is in satisfactory condition for continued service

• Upon completion an Electrical Installation

  Condition Report shall be provided